Circuit board assembly and method for manufacturing the same
AssigneeJtekt Corporation
InventorYuichi TOYAMA
Life of this patent
Estimating the term…
Abstract
Provided are a circuit board assembly that can prevent contact between connection terminals due to whiskers even if whiskers grow from the connection terminals and a method for manufacturing an insert molded product. A cover body of a circuit board assembly has a plurality of partition walls that form a plurality of grooves each accommodating a corresponding one of connection terminals. The partition walls restrain the inner surface of a second cover of the cover body from entering the grooves when an external pressure is applied to a part of the cover body which covers the connection terminals. The partition walls also prevent contact between adjoining ones of the connection terminals when whiskers grow.
Claims4
A circuit board assembly, comprising:
- a circuit board having an electronic component mounted thereon;
- a plurality of connection terminals disposed on the circuit board;
- and
- a cover body that surrounds the circuit board and the connection terminals and supports the circuit board, wherein,
- the cover body includes a restraining portion that forms a plurality of accommodating grooves each accommodating a corresponding one of the connection terminals, the restraining portion restrains an inner surface of the cover body from being displaced toward the accommodating grooves when an external pressure is applied to a part of the cover body which covers the connection terminals, and the restraining portion separates the connection terminals from each other to suppress contact between the connection terminals.
A method for manufacturing a final circuit board assembly including a circuit board having an electronic component mounted thereon, a connection terminal disposed on the circuit board, and a cover body that is made of a synthetic resin, that surrounds the circuit board and the connection terminal and supports the circuit board, and that has an accommodating groove accommodating the connection terminal, an outer surface of the cover body being covered by an external structure made of synthetic resin, comprising:
- placing, as an insert, the cover body containing the circuit board into a mold;
- and
- insert molding the external structure made of synthetic resin around the outer surface of the cover body containing the circuit board, wherein,
- an inner surface of the cover body has a restraining portion projecting toward the accommodating groove, and
- the restraining portion restrains the inner surface of the cover body from being displaced toward the accommodating groove by a molding pressure when the external structure is insert molded.
Dependencies are inferred from the claim text.